<html>
    <head>
        <title>Index page</title>
            {% assets "css_all" -%}
                <link rel="stylesheet" href="{{ ASSET_URL }}">
            {%- endassets %}
    </head>
    <body>
        <button class="pure-button btn">提交</button>
        {% assets "js_all" -%}
            <script src="{{ ASSET_URL }}"></script>
        {% endassets %}
    </body>
    </html>
